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(No Model.) 4.Sheets-Shet 1.

G. H. STUBLEY.

rm DRIVINGVSIFTING APPARATUS.

No. 424,232. Patented Mar. 25, 1890.

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(No Model.) 4 Sheets-Sheet 2.

G. H. STUBLEY.

DRIVING SIFTING APPARATUS.

No. 424,232. Patented Mar. 25, 1890.

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(No Model.)

0. H. STUBLEY. DRIVING SIFTING APPARATUS.

Patented Mar. 25, 1890.

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No. 424,232. Patented Mar. 25, 1890.

Wa'mcmr UNITED STATES PATENT OFFICE.

CHARLES HESSEY STUBLEY, OF KINGS ROLLER MILLS, KNOTTINGLEY,

' COUNTY OF YORK, ENGLAND. i

DRIVING SIFTING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 424,232, dated March25, 1890.

Application filed October 16, 1889. Serial No. 327,214. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES HESSEY STUB- LEY, miller, a subject of theQueen of Great Britain, residing at Kings Roller Mills, Knottingley, inthe county of York, England, have invented certain new and usefulDriving Sifting Apparatus, of which the following is a specification.

Figure 1 shows a plan; Fig. 2, a side elevation; Fig. 3, a transversevertical section on the line X X, Fig. 1; and Fig. 3 is a detail viewshowing the universal-joint connection between the side shaft and one ofthe connecting-rods Fig. 4., a longitudinal vertical section on the lineYY, Fig. 1, of a fiour-sifter driven according to my invention.

A is the framing, which has suspende from it four vertical rods B, whoseupper ends are connected by universal joints B to the frame A and byuniversal joints B to the framing O, which carries the sieves.

D, E, and F are the sieves. The siftings from the upper sieve pass bythe opening D to the top of the second sieve E, while the tailings passaway by the opening or spout D The siftings from the middle sieve E passout by the opening E, while the tailings pass by the opening E to thetop of the lower sieve F. The siftings from the sieve F pass out by theopening F, while the tailings pass out by the opening F I wish it to beunderstood, however, that this construction of sieve and the method ofsupporting it by universal joints form no part of my invention, which isapplicable to many other sorts of sieves.

G is the main driving crank-shaft. Its cranks are connected to the sieveby the rods G G, which have universal joints at each end, as shown. Oneend of the crank-shaft G carries a beveled pinion G which gears with thebeveled pinion H at the end of the second crank-shaft H. The crank ofthis shaft is connected by the rod H to the sieve, and this rod, likethe rods G, has universal joints at each end. The shaft H might be thedriving-shaft and G the driven shaft. In the drawings all three crankshave the same throw, and the pinion G has twice as many teeth as thepinion H but the cranks may have different throws, and different num-'bers of teeth may be used. The shafts also are shown at right angles toeach other,which is the most convenient arrangement; but they may beinclined to each other at any other angle so long as they are not in astraight line with or parallel to each other. By thus varying thearrangements many different motions may be given to the sieve.

WVhat I claim is 1. The combination of the main frame, the sieves, theadjustable suspending-rods, the ball-and-socket joints connecting therods to the frame and to the sieves, the horizontal side shaft G, theend shaft I-I, geared therewith, the rods G, directly connecting theshaft G with the adjacent side of the sieves near each end, theuniversal joints at each end of the rods G, and the rod H, directly.connecting the shaft H with the adjacent end of the sieves and havinguniversal joints at each end, substantially as and for the purposespecified.

2. The combination of the main frame, the sieves, the suspending-rodsconnecting the sieves to the mainframe, the horizontal side shaft G,having a crank near each end provided with socket-balls, as described,the rods G, provided with sockets fitting said balls on the shaft G andconnecting with the sieves by universal joints, the horizontal end shaftH, geared with the shaft G and provided with a crank formed with asocket-ball, as described, and the rod H, formed with a ballsocket atone end connected with the crank on the shaft H, said rod being alsoconnected by universal joint with the end of the sieves, substantiallyas and for the purpose specified.

CHARLES HESSEY STUBLEY.

Witnesses:

HERBERT FRAS. LOWE,

N otarg Public, Hull. E. H. I-IoRsLEY,

He's Clerk.

